10 Fast and frugal Electric Cars rom The Frankfurt Motor Show

1. Audi e-TronAudi's e-Tron is one of the show's biggest surprises. A concept for now, it is an electric version of the R8 supercar with four motors – one at each wheel - churning out 313bhp and a colossal 3,319 lb/ft of torque. That's about 20 times the overtaking muscle of a Ford Focus. 2. BMW VisionEDBMW's concept is fast and frugal. It has a 1.5-litre plug-in electric/diesel motor